Terremoto moderato mag. 3.9 - 3.6 km a sud-est da San Leandro, Contea di Alameda County, Contea di Kern, Stati Uniti, 28 Jun 6:29 pm (GMT -7) -

Terremoto moderato mag. 3.9 - 3.6 km a sud-est da San Leandro, Contea di Alameda County, Contea di Kern, Stati Uniti, 28 Jun 6:29 pm (GMT -7)

Terremoto moderato magnitudine 3.9 at 9 km depth

29 Jun 01:30 UTC: Primo a segnalare: VolcanoDiscovery dopo 52 secondi.
29 Jun 01:31: Ora utilizzando nuova fonte di dati: USGS
... [show all] ...
29 Jun 05:50: Profondità ricalcolata da 10.6 a 9.2 km (da 6.6 a 5.7 mi).
Update Tue, 29 Jun 2021, 01:36
Moderate magnitude 4.1 earthquake 2 miles southeast of San Leandro, California, United States
4.1 quake 28 Jun 6:29 pm (GMT -7)
4.1 quake 28 Jun 6:29 pm (GMT -7)
A shallow magnitude 4.1 earthquake was reported early evening near San Leandro, Alameda County, California, USA.
According to the United States Geological Survey, the quake hit on Monday 28 June 2021 at 6:29 pm local time at a shallow depth of 6.6 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.1 as well.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Ashland (pop. 21,900) located 1 miles from the epicenter, Castro Valley (pop. 61,400) 2 miles away, and San Leandro (pop. 90,700) 2 miles away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Hayward (pop. 158,300) located 4 miles from the epicenter, Alameda (pop. 78,600) 9 miles away, San Ramon (pop. 76,100) 9 miles away, Oakland (pop. 419,300) 10 miles away, and San Francisco (pop. 864,800) 17 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include San Jose (pop. 1,026,900) located 29 miles from the epicenter.

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Earthquake data

Data & ora: 29 Jun 2021 01:29:48 UTC -
Ora locale a epicentro: 28 Jun 6:29 pm (GMT -7)
Magnitudine: 3.9
Prof.: 9.2 km
Epicentro latitudine / longitudine: 37.70617°N / 122.12233°W (Contea di Alameda, Contea di Kern, Stati Uniti)
Antipode: 37.706°S / 57.878°E
Vulcano più vicino: Clear Lake (151 km / 94 mi)
Nearby towns and cities:
1 km NNO da Ashland (pop: 21,900) --> Vedi sismi vicini
3 km ONO da Castro Valley (pop: 61,400) --> Vedi sismi vicini
4 km SE da San Leandro (pop: 90,700) --> Vedi sismi vicini
6 km NO da Hayward (pop: 158,300) --> Vedi sismi vicini
14 km ESE da Alameda (pop: 78,600) --> Vedi sismi vicini
15 km OSO da San Ramon (pop: 76,100) --> Vedi sismi vicini
17 km SE da Oakland (pop: 419,300) --> Vedi sismi vicini
27 km ESE da San Francisco (pop: 864,800) --> Vedi sismi vicini
45 km NNO da San Jose (pop: 1,026,900) --> Vedi sismi vicini
112 km SSO da Sacramento (pop: 490,700) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Broken Clouds 19.8°C (68 F), humidity: 72%, wind: 3 m/s (5 kts) from WSW
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 4.5 x 1010 joules (12.4 MWh, equivalent to 10.7 tons of TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.Prof.UbicazioneFonte
3.99.2 km3km N of San Lorenzo, CAUSGS
4.010 kmSAN FRANCISCO BAY AREA, CALIF.EMSC

User reports for this quake (2416)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Fairfield, California (55.8 km NNE of epicenter) [Map] / Weak shaking (MMI III)
San Ramon, Contra Costa, California (15.8 km NE of epicenter) [Map] / Moderate shaking (MMI V) / complex motion difficult to describe / 5-10 s : Double quick jolts  
daly city (28.4 km WSW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Bonadelle Ranchos-Madera Ranchos, Madera, California (207.1 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Severe jolt. Rang my doorbell  
Milpitas, Santa Clara, California (36.4 km SSE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
San Lorenzo, Alameda, California (5.9 km S of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s : Very powerful jolt  
San Mateo, California (23.9 km SW of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / very short
Alameda, California (11.3 km WNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Emeryville, Alameda, California (20.6 km NW of epicenter) [Map] / Light shaking (MMI IV) : I was sleeping and woke up my bed shaking a for a second . I thought my house was possessed  
North Pacific Ocean (156.6 km SSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
San Francisco (26.8 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short
Santa Clara, California (43.9 km SSE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Richmond (30.6 km NW of epicenter) [Map] / Weak shaking (MMI III) / very short
Berkeley, CA (19.9 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Alameda, California (11.2 km NW of epicenter) [Map] / Light shaking (MMI IV)
San Mateo (22.8 km SW of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s
Oakland, Alameda, California (16 km NW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
Fremont, CA (27.5 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Fremont, Ca (19.8 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s
Daly City, California (3.8 km NNE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Shaking  
Walnut Creek, CA (21.4 km NNE of epicenter) [Map] / Weak shaking (MMI III)
Kensington (25.8 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Very quick lateral shake with no effect on moveable objects  
Walnut Creek (23.8 km N of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : something like a freight train then a jolt  
San Jose (48.3 km SSE of epicenter) [Map] / not felt
Foster City, San Mateo, California (21.8 km SSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
SAN FRANCISCO (29.6 km WNW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
Oakland California (12 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Moraga, Contra Costa, California (16.4 km NNW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s : Unnerving  
5851 Balboa Dr.,Oakland, Ca, 94611 (15.5 km NNW of epicenter) [Map] / Weak shaking (MMI III) : House crackling mild bump  
Alameda (12 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / 5-10 s (reported through our app)
Oakland, Ca (5.5 km NW of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s : Moving objects  
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